Slotted frame construction for rotary printing press



1956 D. L. HARRISON 2,730,044

SLOTTEID FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 15, 1951 10 Sheets-Sheet l 0Wr Z. HARP/SON INVENTOR.

ATTORNEY Jan. 10, 1956 o. L. HARRISON 2,730,044

SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 19, 1951 10 Sheets-Sheet 2 /77 my DEWEY L H4 lP/Q/S'O/V 1N VEN TOR.

AT'I'OJRNEY Jan. 10, 1956- HARRISON 2,730,044

SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 19, 1951 10 Sheets-Sheet 3 DEM 5y Z. HA/PQ/SO/V IN V EN TOR.

A TTORNEY Jan. 10, 1956 D. L. HARRISON SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS 118d QG'G. 19, 1951 10 Sheets-Sheet 4 0EWV A. HA/P/P/so/v IN V EN TOR.

.4 TTORNE Y Jan. 10, 1956 D. L. HARRISON SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 19, 1951 10 Sheets-Sheet 5 05m? Y A HAP/W6 ON I N V EN TOR.

A TTORNE Y 1956 D. L. HARRISON 2,730,044

SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 19, 1951 10 Sheets-Sheet 6 fiwr Z. HARP/SON INVENTOR.

A TTORNEY Jan. 10, 1956 D. L. HARRISON SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 19, 1951 10 Sheets-Sheet '7 flms'y A. HARRIS o/v INVENTOR.

A T TORNE Y 10, 1956 D. L. HARRISON 2, 30,044

SLOTTEID FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 19, 1951 10 Sheets-$heet 8 051445) A. HAPR/SON I N V EN TOR..

A TTORNE Y Jan. 10, 1956 D. 1.. HARRISON SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 19, 1951 10 Sheets-Sheet 9 0514 5) L HARP/SON IN VEN TOR.

Jan. 10, 1956 o. HARRISON 2,730,044

SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Filed Oct. 19, 1951 10 Sheets-Sheet 10 QEWEV L HARR/SON INVENTOR.

a -11. ATTORNEY United States Patent O SLOTTED FRAME CONSTRUCTION FOR ROTARY PRINTING PRESS Dewey L. Harrison, Grand Prairie, Tex. Application October 19, 1951, Serial No. 252,083

12 Claims. (Cl. 101-181 This invention relates to rotary printing presses and more particularly to rotary printing presses in which plate cylinders of varying diameters may be used with a minimum change and adjustment of parts and with a minimum expenditure of time.

Rotary printing presses, such as those employed to print in two or more colors on a continuous web or strip of paper or other material passing through the press, are provided with plate cylinders each of which coacts with an impression cylinder to print on a web or strip of paper which passes between the cylinders as they are rotated. The plate cylinders are inked by any suitable mechanism. It is desirable in such rotary printing presses that the plate cylinders be easily removable since different cylinders must be used at different times. Since the plate cylinders may be of dilferentdiameters, the plate cylinders should be adjustable relative to their associated impression cylinders and to their associated inking mechanisms. In addition, it is desirable in some instances that the rotary press be capable of printing on either side of the web or strip of paper or on both sides. Moreover, it is further desirable that the printing press should be easily adapted to print in two, four or more colors.

Accordingly, it is an object of this invention to provide a new and improved rotary printing press.

It is another object of this invention to provide a new I and improved rotary printing press having means for easily and quickly changing plate cylinders;

It is still another object of the invention to provide a new and improved rotary printing press having means for easily and quickly adjusting plate cylinders relative -to their associated impression cylinders} It is a further object of the invention to provide a new i and improved rotary printingpress for printing on either or both sides of a web of paper or other materiaL- It is a still further object of the invention to provide ting or coiling bay. Each of the printing bays comprises a pair'of parallel vertical frames mounted on a base. At least one impression roller and two plate cylinders are mounted on and between theframes. The opposite ends of the plate cylinders are rotatably 2,730,044 Patented .Ian. 10, 1956 sociated impression cylinders. Inking mechanisms are adjustably mounted on and between each pair of frames for movement relative to their associated plate cylinders so that the inking mechanism of each plate cylinder may be adjusted to provide proper inking after the plate cylinder has been properly positioned with respect to its associated impression cylinder. The various cylinders and the perforating cutting mechanisms are driven from a common main driving shaft connected to a motor mounted on the perforating and cutting bay. A separate motor is provided for driving the coiling mechamsm.

One of the bays may be provided with two impression rollers each having an associated plate cylinder. A compensating roller is mounted between and spaced from the two impression rollers to reverse the direction of movement of the web after it leaves one impression cylinder and before it arrives at the other impression cylinder. The compensating roller is also employed to insure that the printing of the two plate cylinders on the web is precisely aligned; In one embodiment of the invention, the direction of rotation'of one impression cylinder may be selectively reversed so that the associated plate cylinder selectively may print: on either side of the web.

For a better understanding of the invention, reference may be had to the following description taken in connection with the accompanying drawing and its scop will be pointed out in the appended claims.

In the drawing,

Figure 1 is a perspective view of a rotary printing press assembly having two printing bays and a perforating and cutting or coiling bay;

Figure 2 is a side plan view of the perforating and cutting or coiling bay taken on the line L-L of Figure 8; t

Figure 3 is a sectional view of the perforating and cutting or coiling bay taken on the line X-X of Fig ure 8; 1

Figure 4 is a side plan view of the middle printing bay taken on the line L-L of Figure 8;

Figure 5 is a sectional view of the middle printing bay taken on the Inc X-X of Figure 8;

Figure 6 is a side plan view of the end printing bay taken on the line L--L of Figure 8;

Figure 7 is a sectional view ofv the end printing bay taken on the line X-X of Figure 8;

Figure 8 is an end plan view of the rotary printing press assembly; I

Figure 9 is a fragmentary sectional view showing the mounting of a plate cylinder bearing in an L-shaped slot of a bay side frame;

Figure 10 is a fragmentary perspective view showing the means for reciprocating one of the inking rollers of each inking mechanism;

Figurell is a perspective view of a bearing block for a plate cylinder;

Figure 12 is a perspective view of the block employed to support each bearing block;

mounted in bearing blocks which are disposed in aligned L-shaped slots having an open end provided in the ends of the frames, the bearing blocks being removable adjustably moving the plate cylinderstoward their as- 1 mounted on the shaft 24 which is rotatably mounted Figure 13 is a fragmentary plan view of a mechanism for reversing the direction of rotation of one impression roller relative to another; and,

Figure 14 is a plan view of the mechanism illustrated ;-in Figure 13 with the elements shown in a changed position.

Referring now to the drawing, the rotary printing press assembly 20 includes an end printing press bay 21, a middle printing press bay 22 and a perforating and cutting or coiling bay 23. The web of paper or other material isuncoiled oil? a roll of paper rotatably on a frame 25 secured to the rectangular base 26 of the vided adjacent its outer end with a worm 97. A gear'98 rotatably mounted in a housing 99 on the shaft 96 meshes with the worm and is rotated thereby. A link 100 has one end pivotally secured to a bracket 101 on the flange 76 and its other end pivotally secured to the gear 98 as at 102. It will be apparent that as the shaft 96 is rotated, the worm 97 will rotate the gear 98, and since the link is secured to the gear at an off-center point, the housing 99 and the shaft 96 will be reciprocated in the manner indicated by the arrows in Figure 10. Reciprocatory movement of roller 96 insures even distribution of ink on the plate cylinder.

The plate cylinders 40 and 41 are rotated in a clockwise direction by a gear 103 mounted on the shaft 31 which meshes with the gear 93 on the shaft 47 of each cylinder. The web of paper or other material is uncoiled off a roll rotatably mounted on the shaft 24 and passes over the roller 27b, between the rollers 27b and 28b, under roller 28b and then around a direction changing roller 105 having a shaft 106a whose ends are journaled in the side frames 27 and 28. The rollers 27b and 28b have shafts 106 and 107 whose ends are supported in bearing blocks 108 and 109, respectively, vertically slidably mounted in a bracket assembly 110. The roller 27 is yieldingly biased toward the roller 28 by a spring 111 which bears against the block 108 and a top member 112 of the bracket 110.

After passing around the direction changing roller 105 the web passes upwardly between the plate cylinder 41 and the impression roller 30. In thus passing between the impression and plate cylinders, the web has imprinted thereon lettering, a design or asolid shade depending on the type of surface with which the plate cylinder 41 is provided. The color of the letteringdesign or solid shade imprinted on the web will depend on the color of the ink held in the reservoir of the inking mechanism 73. After the plate cylinder 41 has printed on the web, it passes between the plate cylinder 40 and the impression cylinder and in so passing has printed on it a lettering, design or solid shade whose color depends on the color of the ink in the reservoir of the inking mechanism 72. It will be apparent that two colors have been printed on the same side of the web. The rotation of the two plate cylinders being synchronized, since the gears 93 of both plate cylinders mesh with the common gear 103, the two colors of printing will be in predetermined relation on the web. After passing between the impression cylinder 30 and the plate cylinder 40, the web passes around another direction changing roller 113 mounted on the side frames in the same manner as the roller 105. The web may now pass to the middle bay 22 for further printing operations.

The web may have holes punched in has it passes down from the plate cylinder in the conventional manner by punches 114 on rotatable disks 115 which engage in suitable apertures in dies 116. The dies are rotated by a suitable train of gears 117, 118, 119 and 120 which are driven from the gear 103 on the shaft 31. The perforations may be made along both edges of the web as can be seen in Figure 1.

It will be apparent now that the end bay 21 has been described in which a pair of plate cylinders 40 and 41 are employed to print two colors on one side of a web drawn through the end bay. Moreover, the plate cylinders of the end bay adjustably and removably mounted on the side frames 27 and 28 by means of the screws 57, the supporting blocks 48 and the bearing blocks 42 which are slidably mounted in the L-shaped slots 43. In addition, the inking mechanisms 72 and 73 provided for the plate cylinders 40 and 41, respectively, are longitudinally adjustable on the side frames to allow the inking mechanism to be properly positioned to the plate cylinders regardless of the variations in the diameters of the plate cylinders employed.

The middle bay 22 is similar to theendbay 21inthat it has a pair of plate provided in the side frame 23a.

cylinders 40a and 41a, similar to the plate cylinders 40 and 41 of the end bay which are mounted in the same manner on the side frames 27a and 28a. The various elements of the middle bay 22 corresponding to elements of the end bay 21 have been supplied with the same reference numerals to which the subscript a has hen added. The middle bay 22 dilfers from the end bay 21 in that two impression cylinders 30a and 30b are provided in order that the plate cylinder 40a may print on the opposite side of the web from that on which the plate cylinder 41a prints. Thus both sides of the web may be printed.

The impression roller 30b is mounted on a shaft iournaled in the side frames 27a and 28a and its bear 103b meshes with the gear 103a of the impression cylinder 30a sothat the two impression cylinders rotate in opposite directions, cylinder 30a clockwise and cylinder 30/) counter-clockwise. The two cylinders are, of course, spaced apart a small distance to prevent contact therebetween.

A compensating roller 126 is mounted below the impression rollers for vertical movement by means of screws 127, one on each side frame 27a and 28a. Each .screw 127 is rotatably secured to its side frame by a block 128 bolted to the side frame and it extends through a threaded bore in a supporting block 129, similar to the supporting block 48, on which is mounted a bearing block 130. The opposite ends of the shaft 131 extend into the bearing blocks so that the compensating roller 126 moves up or down as the screws 127 are rotated. The lower end of each screw 127 is provided with a bevel gear 132 which meshes with a matching bevel gear 133 on a shaft 134 which is journaled in the side frames 27a and 28a. The shaft 134 terminates in a handle 135 by means of which it may be rotated.

The web of paper after passing about the direction changing roller 113 of the end bay 21 passes about the direction changing roller 105a of the middle bay and thence upwardly between the plate cylinder 41a and the impression roller 30a. The plate cylinder is inked by the inking mechanism 73a with ink of a third color so that one side of the web will now have printing in three colors. The web then passes, as indicated by the broken line, about the impression cylinder 30a to the compensating roller 126. From the compensating roller, the web passes upwardly between the plate cylinder 40a and the impression cylinder 30:: and thence up to and over direction changing rollers 136 and 137. The plate cylinder 40a is inked by the inking mechanism '72:: and prints on the opposite side of the web in any desired color depending on the color of the ink in the reservoir of the inking mechanism 72a. The compensating roller 126 may be adjusted to obtain a desired registry between the printing on the two sides of the web. The direction changing roller 136 is mounted on straps 138 and 139 securedto the side frames 27a and 28a, respectively, while the roller 137 is secured to the inking mechanism by straps 139 and 149.

In Figures 13 and 14 is shown a modified form of the engagement of the impression rollers in which the gears 103a and 1031b of the impression cylinders donot mesh, the driving connection between the shafts 31a and 1.25 of the impression cylinders being made through gears 141 and 142 on the shafts 31a and 125, respectively. A direction of rotation changing mechanism 143 comprising a plate 144 is mounted on the outer side of the frarne 28a by means of bolts 145 and a pair of meshing gears 146 and 147 rotatably mounted on the plate 144. The bolts 145 may engage either in a pair of threaded bores 145a, as shown in Figure 13, or in a pair of threaded bores 145b, as shown in Figure 14, When the plate 144 is in the position shown in Figure 13, the gears 146 and 147 mesh with the gears 142 and 141, respectively, and the impression cylinders are rotated in the same manher as indicated: in Figure 5. When the. plate. 1,44 is moved totheposition showninPigure 14, howeverqthe direction. of rotation of the impression iroller 30b is tremodificatiom-the' direction: ofrotation of the impres- 'sion. roller 30b can be easily reversed sothatthe, plate cylinder 49a canselectivelyprint on either side ofxthe "web. The-gearql03b on the shaft 125 will, of. course,

-. be atalltimes inmesh with thegear 93 sion cylinder-.4051 so thatits direction wiilzalsochange' of the impresinv an appropriate manner. Theugearing between the a gear 93 ofthe plate cylinder 40a and therollerQGa or the inking mechanism 72a will, of coursealsohavozr -to be changed in ordertorkeepi; the roller 94h: rotating in the. same direction regardless of .the'direction ofro- -tation of. they plate cylinder: 40a. This. can be; done by the substitution of two meshing :gears (not shown) for thesinglegear 94:: nowmeshing with the gears ;'of the1 plate cylinder 46a and of the ink cylinder 90a.

-with two different colors'onbe priutedon ootlrsides It will be apparent now by selectively changing the direction of rotation of t'neplate cyli'nderAtla, the web may be printed in. the-middle, bay 8iih8l', 0i'l oneside and that in former'casc the web passes-over the rollers :It will be apparent that any desired combination of the two diiferenttypes of printing bays, having eitheri one. or two impression cylinders,, can be arranged to print a. web with as many colorsas may-be desired,

either onone side-onlyor onb'oth sides. [The common main driving shaft34 keeps thevarious cylinders rotating in synchronism so that" the various-colors register properly on the web.

' In passing through. the 1bay 23, the web is perforated both longitudinally and.transversely at,desired predetermined intervals andthen eithercut mto sheets,of predetermined sizes or else coiled in auroll. {The bay 23 has.

.- sideframes 150 and 151 in which arejournaled direction changing rollers 152, 153 and 154, ahardsurfaced roller 155 with which the knives 156 cooperatetoperforate the .ing rollers 159 andlfiii which pull theweb eithertoward the cutter roller 160-or to a=reel (not shown); on;the shaft 2 1-51. The-drawing-roller159 is mounted on a shaft 162 on which are also mounted'a bevel-gear 1,63 which meshes 1 with a bevelgear 164 onthe main drivingrshaft 34, and

- a ring gear 165 which meshes with a-gear-166 mountedon the same shaft 167 as the cutter roll 160.' The, rollers I '155 and 157 areprovided with gearswhich-meshwith the. gears 168 rotatably'mounted,on-theside'frame'ISOr The gear 168a of roller 157and agear of roller l59 also meshiwith a gear.169 rotatably mountedqionflthe nside .frame 150 so that when themainshaft 34 isrotated the rollers 1'55, 157 and r159-also rotate.

The cutter roller 160arisprovidedwvith a conventional knife 1 70. which-cooperates:with a-plate '171.;to..cut the web into'sheets. ".The transverse perforating knives -156 are mounted in brackets172intthe conventional manner,

the brackets being mounted on a transverse-shaft'173 whose ends are supported in bearing blocks 174 secured to'the side frames.

1 The main shaft 34 issuppor-ted bythe supportst36 1 and is provided with aplurality of pulleys '175i about ti 8 =1-shaft1178 of a conventional transmission 17 9,;driyen by an; electric motor: 180.

The shaft-1161; isialso driven through beltand pulley :rarrangementpby a-motor1-181 -mounted on a;pivoted.base :e18-2wh0seangularinclination maybeadiustedby a screw M183 to-varythe tension on-the belt .134. The belt 134 connects:thelpulleys l85z and-186011 the motor shaft'187 wand ashaft 1880f atransmission-139.; The drivingshaft 1901of= the transmission-189has a pulley EM-which is 19 connectedto the pulleyi192on the shaft 161 by a belt :193. .Whenz desired,;-.theweb is v coiled on HIESLLHOt shown, secured on thesh'aft 161 and for this reasomthe .-shaft.-"161 may -be:rotated,bythe motor 181.

.Itwwill-now be' apparent that the maiirshaft :34-being :...geared to alltherotatableuelernents of the, printing bays .--and to all.the=rotatable.elements, .exceptthe Shaftlpfil, ioftheperforating and cuttingbays, the-operation ofall the elements is synchronized to printthe vwebin several registering colors, either-on -one or. both sides, andzto Q: perforate and cut the web at appropriateintervals. If :desired the webmay be coiled-into a roll instead of being cut. into sheets. Moreover, the printing baysare pro- "'videdwithlplatecylinders which can be quickly and easily removed-in the mannerdescribed. It will be apparent-tothose skilled in tne art; that a various changesv and modifications can be made Without departing from the invention and it is intended therefore ":in' the appendedclaims to. cover all such-changes and modificationsmas fall. within'the true spirit andscope 'of theinvention. i

' What-is claimed is: a l. A-retary printing press comprising: a pair of spaced parallel vertical side frames, a horizontal flange at the top f each'of-said'frames, said horizontal flanges each having a depending V-shaped portion at each end thereof,-an angular flange formed on each side of each of said side -'-frame's below andin parallelism with the inner surfaces 0fsaid- V-shaped portion to define an open ended I L -shap'ed slot inclining downwardly from the openend and'tnen inclining upwardly to the closedend, the slots in said frames being aligned; an impression cylinder rotatably mounted onand-between said side frames; hear' ing'blocks slidably and adjustably mounted on said side '-frames in said slots,-each of said bearing blocks being removable through the'open end of its slohand a plate cylinder rotatably mounted on said bearing blocks and y -movable into contact with said impression cylinder when said bearing blocks are moved upwardly in said slots.

- 2. A rotary printing presseomprising: apair ofspaced parallel vertical side frames, laterally projecting and verti- 'cally spaced portionsaon each sideof each of said frames defining an open ended slot inclining downwardly from -the'open-end and then inclining upwardly to the closed er id; the-slots in saidframes'being aligned; animpression --cylin der rotatably mounted on and between said side ffrarnes; a'bearing block slidablymounted in each of the slots of said side frames a screw parallelwith each-0fsaid slots--and connected to said bearing blocks for simultaneously. moving said bearingblocks toward and away from said closed ends of said slots, said bearing blocks 1 being-removablethrough the'open endofsaid slots; and Y a plate cylinder rotatably mounted on said bearingblocks --;a nd movable into-contactwith said impression cylinder -when-said bearing blocks-are moved upwardly toward said closedends of said, slots.

3. A rotaryprinting press comprising; a pair of spaced parallel vertical side frames, a v-shaped projeetipn inte- -gral 'with; and-dependingfrom-the top ofsaid frame, a late ral;pr ojection oneach side of said frame haying an angular flange confronting the inner surface of eachof said V-shaped projections;and defining an open ended slot inclining downwardly from the open end and theninclin- ---'-ing upwardly 'to'the closedend-,'- the slots in said frames being aligned, an impression cylinder rotatablymounted -on --andbetween said side -frames; a-=supporting block slidably disposed in each of said slots for movement toward and away from the closed end of the slot, said block having a threaded bore; an elongate screw rotatably mounted on each frame and extending through the threaded bore of its associated supporting block, each of said supporting blocks moving toward and away from the closed end of its associated slot when its associated screw is rotated; means mounted on said frames for simultaneously rotating the screws on both of said frames; a bearing block mounted on each of said supporting blocks, each bearing block being removable from its slot through the open end of the slot; and a plate cylinder mounted on said bearing blocks and movable into contact with said impression cylinder when said bearing blocks are moved upwardly toward said closed ends of said slots.

4. A rotary printing press comprising: a pair of spaced parallel vertical side frames, a V-shaped projection integral with and depending from each side of the top of each of said frames, a lateral projection integral with each side of each of said frames having angular flanges confronting the inner surfaces of said V-shaped projections and defining an open ended slot inclining downwardly from the open end and then inclining upwardly to the closed end, the slots in said frames being aligned, an impression cylinder rotatably mounted on and between said side frames; a supporting block slidably disposed in each of said slots for movement toward and away from the closed end of the slot, said block having a threaded bore; an elongate screw rotatably mounted on each frame and extending through the threaded bore of its associated supporting block, each of said supporting blocks moving toward and away from the closed end of its associated slot when its associated screw is rotated; a gear on each screw; a transverse shaft journaled in said shafts and provided with gears meshing with the gears on screws for simultaneously rotating both screws; a bearing block mounted on each of said supporting blocks, each bearing block being removable from its slot through the open end of the slot; and a plate cylinder mounted on said bearing blocks and movable into contact with said impression cylinder, when said bearing blocks are moved upwardly. i

5. In a rotary printing press, apair of parallel vertical spaced side frames, an upper horizontal surface, integral, V-shaped portions depending from each end of said horizontalsurface, angular portions integral with each side of said frame and spaced below said V-shaped portions to define a substantially L-shaped slot opening at one end thereof and extending inclinedly downwardly and then inclinedly upwardly toward said horizontal upper surface and terminating short thereof; the slots of said side frames being aligned; an impression cylinder journaled in said side frames and extending transversely therebetween; bearing blocks slidably mounted on said side frames in said slots; a plate cylinder mounted on the bearing blocks;

means for adjustably and simultaneously moving said bearing blocks upwardly in said slots to bring said plate cylinder toward said impression cylinder, said bearing blocks being removable from said slots through the open ends thereof, whereby said plate cylinder may be removed; and an inking mechanism for said plate cylinder slidably mounted on said upper horizontal surfaces of said side frames and movable in a horizontal plane toward said impression cylinder.

6. In a rotary printing press, a pair of parallel vertical spaced side frames, each of said side frames having an upper horizontal surface, an integral V-shaped portion depending from each end of said horizontal surface, a laterally extending portion on each side of said frame spaced below said V-shaped portion to define a slot opening at one end thereof and extending inclinedly downwardly and then inclinedly upwardly toward said horizontal upper surface and terminating short thereof; the slots of said side frames being aligned; an impression cylinder journaled in said frames and extending transversely therebetween; bearing blocks slidably mounted on said side frames in said slots; a plate cylinder mounted on the bearing blocks; means for adjustably and simultaneously moving said bearing blocks upwardly in said slots to bring said plate cylinder toward said impression cylinder, said bearing blocks being removable from said slots through the open ends thereof, whereby said plate cylinder may be removed; an inking mechanism for said plate cylinder mounted on said upper horizontal surfaces of said side frames and movable in a horizontal plane toward said impression cylinder; and means for adjustably moving said inking mechanism along said horizontal surfaces.

7. In a rotaiy printing press, a pair of parallel vertical spaced side frames, each of said side frames having an upper horizontal surface, an integral portion depending from each end of said horizontal surface forming an angular flange, a laterally extending portion on each side of said frame forming an angular flange confronting said first flange to define a slot opening at one end thereof and extending inclinedly downwardly and then inclinedly upwardly toward said horizontal upper surface and terminating short thereof; the slots of said side frames being aligned; an impression cylinder journaled in said side frames and extending transversely therebetween; bearing blocks slidably mounted on said side frames in said slots; a plate cylinder mounted on the bearing blocks; means for adjustably and simultaneously moving said bearing blocks upwardly in said slots to bring said plate cylinder toward said impression cylinder, said bearing blocks being removable from said slots through the open ends thereof, whereby said plate cylinder may be removed; an inking mechanism for said plate cylinder mounted on said upper horizontal surfaces of said side frames and movable in a horizontal plane toward said impression cylinder; and means for adjustably moving said inking mechanism along said horizontal surfaces, said last mentioned means comprising a rack and gear operatively associated with said inking mechanism and said side frames.

8. A rotary printing press comprising: a pair of spaced parallel vertical side frames, a member integral with and depending from each side of the top of said frame, each having an angular flange, a laterally extending portion integral with each side of said frame having an angular flange spaced below and parallel with said first angular flange to define an open ended slot inclining downwardly from the open end and then inclining upwardly to the closed end, the slots in said frames being aligned; an impression cylinder rotatably mounted on and between said side frames; a bearing block slidably mounted in each of said side frames and connected to said bearing blocks for simultaneously moving said bearing blocks toward and away from said closed ends of said slots, said bearing blocks being removable through the open end of said slots; a plate cylinder rotatably mounted on said bearing blocks and movable into contact with said impression cylinder when said bearing blocks are moved upwardly toward said closed ends of said slots; and an inking mechanism for inking said plate cylinder mounted on said side frames for movement in a horizontal plane above said plate cylinder toward and away from said impression cylinder.

9. A rotary printing press comprising: a pair of spaced parallel vertical side frames, an angularly flanged portion depending from each side of the top of said frame, a laterally extending flanged portion on each side of said frame, the flanges of said depending and said laterally extending portions defining an open ended slot inclining downwardly from the open end and then inclining upwardly to the closed end, the slots in said frames being aligned, an impression cylinder rotatably mounted on and between said side frames; a supporting block slidably disposed in each of said slots for movement toward and away from the closed end of the slot, said block having a threaded bore; an elongate screw rotatably mounted on each frame .eeandzcxtendingithrough-theithreaded-borei-ofaitszassociated 1;supporting;bldckgeach 'OfLSald supporting blocks; moving -;towardsand:awayrvfrom' the closed. end of;its-associated 5 slot when -its associated screw is rotated; means mounted on .said frames for. simultaneously rotating: the: screws; on a both ofisaid frames; a bearingblockmounted on eacht'of said supporting blocks; each-bearing blockwbeing remov- :;-able 'from'its'slotthrough the; open endoftheLslot; a -iplate: cylinder mounted on saidbearing blocksand=movable into contactwith SflldIlII'lPICSSlOIL cylinder when said, 'wbearingi blocks are moved upwardlyr toward said: closed --iends*of said slots; and an: inking mechanismfiorsinking said plate cylinder mounted on said side frames for move- -ment in a horizontal plane abovesaid plate cylinder towardand away fromsaid impression cylinder. v

.10.;A rotary-printing-press comprising: apair-of spaced parallel vertical ,7 side: 1 frames, vertically; spaced: portions integral with each sidesof. said frame, having confronting wangularflanges defining. anopenqended slot inclining 1.;downwardlyfrom the .open end and then inclining -up-g; r Wardly: toathe closed end, the slots inxsaid frames being Y aligned,:. animpression cylinder'rotatably mounted on and between .saidside frames; .a' supporting block slidablyj disposedin -each"of said-s1ots, for-movementtoward and away from the' closed end'of the slot,.said blockha-ving a threaded bore; an elongate screwrotatably mounted :on each frame andgextending through: the-threaded bore :of its, ;ass0ciated supporting, iblockyeach: of saidzsupporting :tblocks movingtowardand away from the, closed: ,endof ,iillS'flSSOClfllBd slot'when its associated a screwv ism-rotated; a .1 .vigearon eachmcrew; atransverse'wsh'aft journaledin said shaftsandnprovided with gearsmeshing with the gears "1011 screws for simultaneously rotating bothwscrewsy a bearing block mounted onieaehtof;saidsupportingblocks,

impression gcylinder whensaid bearing blocks are moved upwardly; and an inking mechanism for inking said'plate cylinder mounted cnusaid side, frames for movement in ahorizontalplane above said plate cyli'ndertoward and away from said impression cylinder. I

, 11. A-rotaryprinting press comprising: agpa'i'r ofspaced 12 -ff)f3fi3ldi$idl ftameszheing-zalignedr transversely extending apimpression-cylindenrotatably"journaled in said side frames sfandsdisposedzbetweensaid slotsin opposite-ends; of said zssidezft-frames; :bearing blocks..slidably; and adjustably mountedyon' said :side frames-ingsaid slots; each 10f said :bearing blocks-being; removable through the open end: of .eits; slot; arplateycylinder mounted on .the bearing;bl0cks in, each:pair;:of; aligned slots, said-plate cylinders being movable upwardly-toward opposite; .sides :of said impressoin .cylinderawhenr saidabearing blocks are moved upwardly: in said slots; means fori'rotatingrsaid impression cylinder;'vand gear, means connecting said impression cylinder-to said plate cylinders :for tsimultaneouslyzrotat-t 1; ingplate cylinders-inopposite directions.

12.- A-rotary printing press comprising: apairoi spaced iparallel vertical? side; frameseverticjally spaced; members :aformed; integrallynwith; each aside i'of said'frame to; define 5;;therebetween an-open; ended slot, each; ofi'isaidzuslots .ex- :tending downwardly-.and; inclined from :its open ,1 end. and

thenvupward aiid; inclinedlys to itsielosed end, the-.slots =in.adjacent endszof said side frames being alignedptransversely extendingjmpr'ession cylinder, rotatablytjournaled minisaid' side -frames:and disposed. between said slots in 1' opposite; :ends 30f said; ;side -frames;--rbearing blocks: slid- I ably and, adjustably mounted on said, side; frames in: said ,-slots,1-each of said bearingblocks being removable. through it the open end of itsyslot; a plate cylinder mounted onthe .--bearing blocks ;in each1pair 0f aligned slots, said plate 7 mcylindersbeing movableupwardly-toward opposite sides 10f said impression cylinder when-said bearing blocks are movedvupwardly in, saidjtslots; means for rotating'said impression cylinder; ggear means connecting said impression cylinder to.said;plate cylinders .for simultaneously rotating platecylindersin opposite directions; and a pair r each bearing block being-removable from its slot throughv 1 r Y I the open end of thej slot; 21 plate icylinder'mounted ,on saidbearingblocks-and movable into contact with said ofinking mechanisms mounted adjacent opposite, ends on said side frames for: rnoyernenhin-a horizontal plane above said cylinders, each of said mechanisms inking an associated plate cylinder.

- ReferencesCitedin thefileof this patent 1 UNITED'JSTATES PATENTS 1,894,966 Von Webern et al. I an. 243"1933 1,904,709 Avery et'al. Apr.*1 8,*1933 L 2,104,065 Zuckerrnan Jan; 4; 1938 2,128,343 i Bemis et al. Aug530, 1938 2,539,965 7 Mossetal. L I an; 30; '1951 2,542,229 "Bojanower et"al.r Feb.-"20,"'19 51 2,597,932 Huck et al. --May 127,- 1952 

